Tractor cab



FIG. 1 is a front elevational view of a tractor cab showing our new design;

FIG. 2 is the rear elevaton view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is the left side elevation view thereof;

FIG. 5 is the top plan view thereof;

FIG. 6 is a front top and side perspective view thereof. 

The ornamental design of a tractor cab, as shown and described. 